I install JBoss-2.4.7_Tomcat-4.0.4 now,I useing jboss-2.4.4 before.I set jboss as following : 1) Create a directory called "jboss.ear" 2) Add a file called index.html 3) Add a sub-directory called WEB-INF 4) In WEB-INF create a web.xml with the following content